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ENGINE APPLICATION MANUAL GM Powertrain
Gasoline 4.3L V6 90 Degree Revised: 08/15/2000
File: c:\data\manuales\v6-truck\am43v6#3.doc
Contact:Luis Nespolo - (248) 857-1558 Printed: 8/15/00
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12.0 NOTES
12.1 ACRONYMS, ABBREVIATIONS, AND SYMBOLS
adv advance CAD Computer Aided Design
A/F Air -Fuel ratio CFR Cooperative Fuel Research
AIR Air Injection Reaction COE Council of Expertise
ASTM American Society for Testing Materials Corr corrected
API American Petroleum Institute COV coefficient of variation
ATDC after top dead center CR compression ratio
avg average CReff effective compression ratio
ACG Allied Component Group Cyl cylinder
CEA Change Engineering Authorization
B barometric pressure CNG Compressed Natural Gas
BMEP brake mean effective pressure
BP brake power
BSFC brake specific fuel D density
BSHC brake specific hydrocarbons Deg Degree
BSHR brake specific heat rejection Dia diameter
BSCO brake specific Carbon Monoxide
BSPM brake specific Particulate Mass
BSNOx brake specific NOx (oxides of nitrogen)
BTDC before top dead center
E engine displacement N polytropic compression coefficient
ECM Electronic Control Unit N Engine Speed
econ economy N2 Nitrogen
EEC European Economic Community NAO North American Operations
EFE Early Fuel Evaporation N/V Engine Speed/Vehicle Speed
eff efficiency NMEP Net Mean Effective Pressure
EFI Electronic Fuel Injection NMOG Non Methane Organic Gas
EGR Exhaust Gas Recirculation No. number
EPA Environmental Protection Agency
ESC Electronic Spark Control
exh Exhaust
exp experimental Obs observed
O/C Oxygen-Carbon ratio
FMEP Friction Mean Effective Pressure OD outside diameter
FP Friction Power
FESM Front End Sheet Metal P Power
FMVSS Federal Motor Vehicle Safety Standards PCV Positive Crankcase Ventilation
PFI Port Fuel Injection
GM General Motors PMEP Pumping Mean Effective Pressure
GMPT General Motors Powertrain PN Part Number
GMTG General Motors Truck Group
GPA Gas Processors Association Program PON Pump Octane Number
GVWR Gross Vehicle Weight Rating PP Peak Pressure
GMUTS General Motors Uniform Test Specifications PT Part Throttle
GPH Gallons Per Hour PCM Powertrain Control Module
P/S Power Steering
HC hydrocarbon PTO Power Take-Off
H/C Hydrogen-Carbon ratio
Hz Hertz (frequency) QFD Quality Function Deployment
IPTV Initial Defects Per Thousand Vehicle R Torque Scale Arm
IAC Idle Air Control RAT Radial Aperture Tube
ID inside diameter Rev revolution
IMEP Indicated Mean Effective Pressure RLP Road Load Power
int Intake RON Research Octane Number
IP Indicated Power RPO Regular Production Option
ISC Idle Speed Control RTD Resistive Temperature Detector
ISO Interl. Orgn. for Standardization RVP Reid Vapor Pressure
RPM Revolutions Per Minute
KT Knock threshold